Press and hold the D key before the gray startup screen appears? It must be C, not D, right?
Press and hold the D key before the gray startup screen appears? It must be C to perform hardware test, not D, right?
Press and hold the D key before the gray startup screen appears? It must be C to perform hardware test, not D, right?
It doesn't work on my Mac Pro... why? This is very strange.
Did your Mac ship with DVD's? If so, that's why. The AHT is on your DVD...did you read the whole article I referenced you?
That's the thing, it wasn't doing it with DVD or without... However, I solved it by installig a third party RAM checker and is okay. Thanks for hepling!
It turned out my MAC boot up too fast into the gray screen and I wasn't holding the "D" key long enough... I found out about it after I've installed the third party RAM checker.
Best regards.
Press and hold the D key before the gray startup screen appears? It must be C, not D, right?